<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        div{
            width: 200px;
            height: 200px;
            border: 1px solid red;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        span{
            width: 30px;
            height: 30px;
            background: black;
            border-radius: 50%;
        }
    </style>
</head>
<body>
    <div>
        <li>
            <span></span>
            <span></span>
        </li>
        <li>
            <span></span>
            <span></span>
        </li>
    </div>
</body>
</html>